Just 1 followup to this : they MAY or MAYNOT have records in the following tables : contact_address,contact_phone
There may also be multiple records in that table w/ the same account_id - but the domain_type_id will be different. so the contact_phone could have 2 records : account_id 1, domain PRIMARY phone 555-1212 account_id 1, domain SECONDARY phone -123-4556
